What is a eccentric elastic sealing butterfly valve？

Double eccentric butterfly valve disc periphery and sealing valve seat are processed into semi-spherical, by the outer sphere of the disc extrusion sealing valve seat inner sphere elastic deformation to achieve the purpose of closing. Double eccentric butterfly valves usually use tetrafluoroethylene materials as their sealing seats, and metal sealing valve seats can also be used to expand its application in the high temperature field. However, the sealing of the double eccentric butterfly valve of the metal seal valve is still a position sealing structure, that is the seal of the disc and the seat is connected as a line. It can not withstand high pressure, application in the high pressure system will inevitably lead to large leakage. Therefore, in the high pressure or strict system that must be cut off, you should try to avoid the use of double eccentric butterfly valves of the metal seal valve.

Advantages of the eccentric elastic sealing butterfly valve：
1.”U” sealing ring
Using “U” stainless steel sealing ring, the seat has a certain elasticity. In the case of high temperature and low temperature, it has excellent sealing with the disc.
2.Easy to disassemble
Elastic metal hard seal butterfly valve has a simple structure, compact, light weight, easy to install and disassemble. It is also convenient to maintain.
3.0 leakage
The “U” sealing ring has a long service life, and the valve has a tighter automatic sealing function. The sealing surface between the compensatory is zero leakage.
4.Suitable for all kinds of media
The material of replacement parts can be applied to various media and can be used for anti-corrosion lining (lining F46, GXPP, PO, etc.).
5.Elastic sealing
The elastic sealing butterfly valve has a unique structure, and the “switch” only needs to turn the stem 90°to complete. The operation is flexible, convenient, labor-saving, and not affected by the pressure of the medium, and the sealing performance is reliable.

WESDOM  advantages

1. WESDOM patent products, patent certification
The product side flanges comply with national, German, Russian, American, British and Japanese standards and other domestic and international standards for multiple pressures, easy connection and wide adaptability, which can reduce the type of purchase and stock.

2. The product has an independent identity to ensure traceability
Each wesdom product has its own unique identification number, to ensure product traceability.

3. Provide material inspection report
All wesdom products can provide the material inspection report of the main parts.

4. One-stop service
One-stop service, we not only supply high quality products, also supply solutions and after-sales service.

5. WESDOM has a lot of project experience
We have a lot of project experience in countries such as Pakistan and the Philippines, WESDOM has always been noticed all over the world, and trust comes from quality.

Quality control process